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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script>
        //数字
        let num1=1;
        let num2 = 1.5;
        let num3 = 1.3e+3; 
        let num4 = 0b111; 
        let num5 = 0o111;  
        let num6 = 0x11;   
        console.log(num6);
        //字符串
        let str1 = "helllo world";
        let str2 = 'helllo world2';
        let str3 = "我叫'zzk'";
        let str4 = `hello ${ 1+1 } `;
        console.log(str4);
        //布尔值
        let bool = true;
        console.log(bool);
        //undefined
        let foo;
        console.log(foo);
        //空值
        let n= null;
        console.log(n);
        //独一无二值
        let s = Symbol();
        console.log(s);
        //bigInt
        let i1 = BigInt(123123);
        let i2 = 123123n;
        console.log(i1);
        //对象
        let o ={name:"张三"};
        console.log(o);
        console.log(typeof 1);
        console.log(typeof str1);
        console.log(typeof true);
        console.log(typeof undefined);
        console.log(typeof o);
        console.log(typeof s);
        console.log(typeof 12n);


    </script>
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<body>
    
</body>
</html>